Investigating health-related behaviour in daily life using ecological
momentary assessment (EMA): new developments
Authors
D. Powell
D. Johnston
D. O'Connor
Abstract
Aims: • Demonstrate new applications of EMA across a variety of
health-related behaviours and determinants. • Introduce novel real-time measures and
combinations of real-time measures. • Introduce new methods of analysis. • Promote the
continued development of EMA methods in Health Psychology. Rationale: EMA, otherwise referred
to as ambulatory assessment or the experience sampling method, is a method of collecting
relatively-intensive repeated measures in daily life. Using EMA methods in research has several
benefits, including data that: (1) maximise ecological validity; (2) are rich with information
about context (where? doing? who with? etc.); (3) minimise recall bias; (4) can combine
real-time self-reports with continuous objective monitoring (activity, heart-rate, etc.); and
(5) permit the exploration of underlying mechanisms and determinants of behaviour
within-individuals, over time. EMA is becoming more popular, with new issues being examined and
new methods of data collection and analysis utilised; this symposium will provide a timely
opportunity to discuss how EMA is developing. Summary: The symposium covers the use of EMA
methods to investigate health-related behaviours in different populations, including clinical,
non-clinical, and health professional samples. First, Cheryl Bell presents a study combining
real-time self-reports (stress and work tasks), heart-rate, and observer-coded ward-round tasks
to investigate a junior doctor’s working day. Next, Gertraud Stadler talks about findings from
an intensive longitudinal study of social support and physical activity that combines daily
diaries with accelerometer counts. Martyn Jones then presents a study using multilevel
structural equation modelling to examine the role of intentions and changes in intention on
attendance at cardiac rehabilitation following acute cardiac syndrome. Fourth, Dan Powell talks
about utilising the Go/NoGo paradigm to measure real-time executive function, and presents
findings on relations between real-time executive function and sedentary behaviour using
time-lagged analysis. Lastly, Daryl O’Connor leads a discussion on EMA methods in Health
Psychology.